Ashworth College BIOLOGY, S SC160 Quiz 4 Module 4 Attempt Score: 100 / 100 - 100 %

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Ashworth College BIOLOGY, S SC160 Quiz 4 Module 4 Question 1 6.667 / 6.667 points A purebred plant that produces yellow seeds is crossed with a purebred plant that produces green seeds. The seeds... of all of the offspring are yellow. Why? Question options: A) The yellow allele is recessive to the green allele. B) All of the offspring are homozygous yellow. C) The yellow allele is dominant to the green allele. D) The alleles are codominant. Question 2 6.667 / 6.667 points A purebred plant that produces yellow seeds is crossed with a purebred plant that produces green seeds. The F1 plants have yellow seeds. What is the expected phenotypic ratio of seed color of the offspring of an F1xF1 cross? Question options: A) 1:2:1 B) 2:1 C) 3:1 D) 9:3:3:1 Question 3 6.667 / 6.667 points An individual who is homozygous ________. Question options: A) expresses the dominant trait B) carries two different alleles for a gene C) carries two copies of the same allele for a gene D) expresses the recessive trait Question 4 6.667 / 6.667 points Which cross will produce only heterozygous offspring? Question options: A) AA � aa B) AA � Aa C) Aa � Aa 08 D) Aa � aa Question 5 6.667 / 6.667 points DNA contains the nitrogenous base ________ instead of ________, which is found only in RNA. Question options: A) a deoxyribose sugar; a ribose sugar B) uracil; thymine C) uracil; guanine D) thymine; uracil Question 6 6.667 / 6.667 points If one strand of a DNA double helix has the sequence ATCCGA, what is the sequence of the other strand? Question options: A) ATCCGA B) TAGGCT C) AGCCTA D) UAGGCU Question 7 6.667 / 6.667 points What type of chemical bond joins the bases of complementary DNA strands? Question options: A) ionic B) covalent C) hydrogen Question 8 6.667 / 6.667 points If a strand of DNA has the sequence GACTTA, transcription will result as CTGAAT. Question options: True False Question 9 6.667 / 6.667 points Translation converts the information stored in __DNA______ to ___RNA_____. 08 Question options: True False Question 10 6.667 / 6.667 points Please read the following scenario to answer the following questions. Widow's peak, a pointed hairline on the forehead, is a genetic trait caused by a dominant allele. It can be traced back through a family's history using pedigree analysis.The pedigree shown here is of three generations of a family. Notice that some individuals (shown in gray) have a widow's peak (W = dominant allele and w = recessive allele). The genotype of Mary is Ww. Question options: True False Question 11 6.667 / 6.667 points A couple has two female children. The probability that their next child will be male will be 35%. Question options: True False Question 12 6.667 / 6.667 points 08 An individual with (naturally) curly hair and an individual with (naturally) straight hair mate; all of their offspring have (naturally) wavy hair. The relationship between the alleles for hair texture is codominance. Question options: True False Question 13 6.667 / 6.667 points Mendel's laws are based on the behavior of chromosomes during prophase. Question options: True False Question 14 6.667 / 6.667 points How many nucleotides make up a codon? Question options: A) two B) three C) four D) five Question 15 6.667 / 6.667 points Transcription is the ________. Question options: A) manufacture of a strand of RNA complementary to a strand of DNA B) manufacture of two new DNA double helices that are identical to an old DNA double helix C) modification of a strand of RNA prior to the manufacture of a protein D) manufacture of a protein based on information carried by RNA Attempt Score: 100 / 100 - 100 % 08 [Show More]

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